Israeli and Palestinian negotiators will meet jointly on Sunday with US envoy Martin Indyk, as attempts continue to prevent the collapse of peace negotiations, officials close to the talks said.

The first three-way meeting since Wednesday comes as Washington reviews its push for a peace deal after a spiral of tit-for-tat moves by Israel and the Palestinians took hard-won negotiations close to collapse.

US Secretary of State John Kerry said on Friday there were “limits” to the time and energy Washington could devote to the process, adding it was time for a “reality check.”

The same day Indyk met separately with chief Israeli negotiator, Justice Minister Tzipi Livni, and her Palestinian counterpart, Saeb Erakat.

Kerry, who has engaged in more than a year of intensive shuttle diplomacy, had spoken to both the Israeli and Palestinian leaders Thursday in a bid to bring the two sides back from the brink.

But Palestinian president Mahmud Abbas rejected his appeals to withdraw applications he signed on Tuesday to adhere to 15 international treaties, a Palestinian official said.